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Unauthenticated HTTP takeover of Oracle Coherence Core

IdentifiersCVE-2026-35307

CVE-2026-35307 is a critical vulnerability in the Core component of Oracle Coherence, part of Oracle Fusion Middleware. Affected versions are 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0. According to Oracle, the issue is easily exploitable by an unauthenticated attacker with network access via HTTP. Successful exploitation can compromise Oracle Coherence and result in full takeover of the affected instance. Oracle also notes a scope change, meaning exploitation of the Coherence flaw may significantly impact additional products that depend on or expose the vulnerable component. The specific vulnerable function or code path is not provided in the available content.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation can lead to complete compromise and takeover of Oracle Coherence by an unauthenticated remote attacker over HTTP. Oracle rates the issue CVSS 3.1 10.0 with high confidentiality, integrity, and availability impact and scope change, indicating potential impact beyond the vulnerable Coherence component into connected or dependent products.

Mitigation

If you can’t patch tonight, do this now.

Until patches are applied, reduce exposure by blocking or tightly restricting network access to the HTTP interface required for exploitation, especially unauthenticated access from untrusted networks. Remove unnecessary privileges or access to affected packages and services where feasible. Oracle notes such workarounds may affect application functionality, should be validated in non-production environments first, and are not substitutes for patching.

Remediation

Patch, then assume compromise.

Apply the Oracle June 2026 Critical Security Patch Update for Oracle Fusion Middleware/Oracle Coherence as soon as possible. Ensure affected Oracle Coherence deployments on versions 12.2.1.4.0, 14.1.1.0.0, 14.1.2.0.0, and 15.1.1.0.0 are updated to Oracle-provided fixed releases or patched builds. Oracle also recommends remaining on actively supported versions and upgrading unsupported releases so security fixes are available.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
OracleCoherenceapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

2 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
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Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity1

Community discussion across Reddit, Mastodon, and other social sources.

EXTERNAL REFERENCES
MITRE CVE
cve.org · CVE-2026-35307
NVD
nvd.nist.gov/vuln/detail/CVE-2026-35307